Para SQL Server 2005 y versiones posteriores, use algo como:
SELECT
name, OBJECT_NAME(parent_object_id) 'Table'
FROM
sys.foreign_keys
WHERE
referenced_object_id = OBJECT_ID('Your-referenced-table-name-here')
Para SQL Server 2005 y versiones posteriores, use algo como:
SELECT
name, OBJECT_NAME(parent_object_id) 'Table'
FROM
sys.foreign_keys
WHERE
referenced_object_id = OBJECT_ID('Your-referenced-table-name-here')